Air quality (AirLink)
Show live AQI and particulate readings from your Davis AirLink sensor.
If your WeatherLink account includes a Davis AirLink air-quality sensor, your site can show live particulate readings and a colour-coded air-quality index — no extra setup beyond connecting your account.
What visitors see
- An Air quality tile in the Overview grid and a dedicated Air quality tab.
- The current AQI with a colour-coded health category and a six-band scale showing where the current reading sits.
- The main pollutant (PM2.5 or PM10) behind the current index.
- Live PM1, PM2.5 and PM10 concentrations in µg/m³.
- A historical chart of air quality over time, with the same range switcher as the other tabs.
Choosing an AQI standard
Different regions score air quality differently, so you can pick the scale your visitors know, under Settings → Cards & stations → Air Quality Index standard:
- European EAQI (the default): a six-band scale — Good, Fair, Moderate, Poor, Very poor, Extremely poor.
- US EPA AQI: the familiar 0–500 index — Good, Moderate, Unhealthy for sensitive groups, Unhealthy, Very unhealthy, Hazardous.
Either way, the index is computed from your AirLink's PM2.5 and PM10 readings, and the worse pollutant sets the headline.
Getting the sensor detected
AirLink is discovered automatically when you connect WeatherLink. If you add an AirLink later, open Connection and choose Reconnect & rediscover; the air-quality tile and tab appear as soon as particulate readings arrive.
Alert on poor air
With an AirLink you can also add a PM2.5 above threshold to your email alerts, so you hear about poor air even when you're not watching the site.